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i7-2600k suddenly requires more power?

post #1 of 22
Thread Starter 
So I've been running my 2600k @ 4.5ghz & 1.35v ever since I've had it. Temps have been 37-41 idle 75-79 load. Which is already high considering I use the decent H70.

Today - My cpu stopped working, I tried tweaking voltages and finally found out that it was my cpu's voltage that was giving me problems (I set it to auto and everything worked fine again). However my cpu now draws 1.42v which is wacky too much imo. Temps are now 42-47 idle and testing load temps are out of the question.

How do I "convince" my cpu that it doesn't need to drain so much power, and how do I get lower overall temps?
Edited by Dust - 5/26/11 at 12:43am
post #2 of 22
Maybe it degraded. or the original voltage was never enough?
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post #3 of 22
Thread Starter 
Hm have only had it for 2-3 weeks. Degradation is unlikely.. Btw your voltages are Amazing. What voodoo magic did you use?!
post #4 of 22
Quote:
Originally Posted by Dust View Post
Hm have only had it for 2-3 weeks. Degradation is unlikely.. Btw your voltages are Amazing. What voodoo magic did you use?!
I had the same problem as you but I found out wasn't my VCC (Vcore). Your system will most likely still crash with 1.42V. I had my 2600K at 4.75GHz and 1.32V all the time and 24/7 folding was no problem. However when I stopped folding and did some browsing I got the 0x124 code in the BSOD. Increasing the VCCIO did the trick for me. And here I thought that I needed 1.392V to get it stable
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post #5 of 22
Quote:
Originally Posted by Dust View Post
Hm have only had it for 2-3 weeks. Degradation is unlikely.. Btw your voltages are Amazing. What voodoo magic did you use?!
Its the Sabertooth mobo, its just rock solid.
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post #6 of 22
Actually my first 2600k DID degrade in only a week, but that was a bad clocker to begin with, and needed like over 1.48v for any sort of prime stability at 5 ghz, but could game (originally) at much lower voltages. And it degraded from repeated use and stress at the high voltages.

And NOTHING except vcore helps this chip...not VTT, not vccsa, nor PLL voltage. Nothing except more vcore. AND it isn't just "break-in" either, as its lost a lot of voltage. Just in gaming, it used to only need 1.44v to play Black Ops 5 hours straight, but now needs over 1.5v. The proof that this chip degraded directly in the cores is that it ALWAYS BSOD 101's in prime, never 124--always 101. Even at lower speeds (like 4.5 ghz) if the vcore is too low--a secondary processor freezes.

My lower vid, better clocking chip degraded a little, too, maybe 0.04v at 5 ghz and 0.026v at 4.5 ghz, but this chip actaully responds favorably to increasing PLL voltage, which helps prevent idle BSOD with LLC2 at 5 ghz, and allowed me to lower the vcore by 0.01v at 5 ghz. And the BSOD at 4.5 ghz with too little vcore is always 0x124...never 0x101. And guess what? Increasing PLL OR Vcore helps that. (Increasing PLL delays the BSOD by a LONG time, but it still need an increase in vcore for 12 hr blend stability). I did a increase in vcore to 0.01v under what was needed for 12 hour blend, and raised PLL to 1.88v, and instead of a 0x124 error, prime gave a roundoff error after 5 hours.
So I'm lucky that the lower VID chip can respond to other things besides voltage.


Another person had two chips degrade...he told me the common factor in both his chips were they were bad clockers.
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post #7 of 22
Ive seen this plenty of times the usual fix is either raising pll over voltage to 1.88v or sometimes lowering it to 1.72v. Also vccio voltage to 1.15v The most likely cause was an unstable overclock to begin with

Degradation is very unlikely at this point in time, Especially at such a low voltage!! Ever since sandybridge was released people are jumping up and down on the degradation bandwagon yet it was rarely mentioned with previous cpu's. Instead of helping people in this forum with unstable overclocks they are being told "oh well you degraded your chip" blah blah blah .It's Such an easy thing to say if you have no idea how to help someone with their bios settings.

In your situation at such a modest overclock with such a low voltage i think cpu degradation is NOT the cause

http://www.anandtech.com/show/2468/6

I have seen plenty of cpu's come and go and all have been taken well beyong intels recommended max voltage for years and no harm has been done. Sandybrige is not miraculously different
Edited by Chewy - 5/26/11 at 3:03am
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post #8 of 22
I have had my cpu overclocked to 4.9ghz for about a month now at 1.46v during load and have had no sign of degradation. My temps never go over 70c and on idle its at about 33c. Try setting your LLC to 7 and then lower you vcore might work thats what i use.
post #9 of 22
Quote:
Originally Posted by Dust View Post
So I've been running my 2600k @ 4.5ghz & 1.35v ever since I've had it. Temps have been 37-41 idle 75-79 load. Which is already high considering I use the decent H70.

Today - My cpu stopped working, I tried tweaking voltages and finally found out that it was my cpu's voltage that was giving me problems (I set it to auto and everything worked fine again). However my cpu now draws 1.42v which is wacky too much imo. Temps are now 42-47 idle and testing load temps are out of the question.

How do I "convince" my cpu that it doesn't need to drain so much power, and how do I get lower overall temps?
Can you post your overclock settings?
post #10 of 22
Quote:
Originally Posted by Chewy View Post
Ive seen this plenty of times the usual fix is either raising pll over voltage to 1.88v or sometimes lowering it to 1.72v. Also vccio voltage to 1.15v The most likely cause was an unstable overclock to begin with

Degradation is very unlikely at this point in time, Especially at such a low voltage!! Ever since sandybridge was released people are jumping up and down on the degradation bandwagon yet it was rarely mentioned with previous cpu's. Instead of helping people in this forum with unstable overclocks they are being told "oh well you degraded your chip" blah blah blah .It's Such an easy thing to say if you have no idea how to help someone with their bios settings.

In your situation at such a modest overclock with such a low voltage i think cpu degradation is NOT the cause

http://www.anandtech.com/show/2468/6

I have seen plenty of cpu's come and go and all have been taken well beyong intels recommended max voltage for years and no harm has been done. Sandybrige is not miraculously different
Chewy, my chip didnt degrade at 1.236v at all at 4.5 ghz. It ONLY degraded after repeated runs at 5 ghz at 1.41v. That degraded 1.236v also. 1.236v NEVER degraded (not for 2 months!) until I started priming at 5 ghz....

Now it needs 1.260v . Raising PLL voltage doesn't exactly remove the 0x124 BSOD at lower than 1.254v, it just makes it take much longer to occur. At 1.254v, raising PLL made it get a roundoff error after 5 hours. I STILL need 1.260v for 12 hour blend stability, irregardless.

Raising PLL helps the idle BSOD's at 5 ghz, even though my CPU STILL needs more vcore than before.

And as i said, my worse (higher vid, much worse clocking) chip, degraded a LOT, since it needed like 1.48v from the beginning, and NOTHING helps it except vcore. Nothing. I've tried EVERY possible thing you can do and the ONLY Thing it responds to is vcore. Proof of that is 0x101 errors instead of 0x124, even at 4.5 ghz (unlike the first cpu).
Edited by Falkentyne - 5/26/11 at 3:43am
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